Combined cooking-stove and hot-water heater.



F. B. HOWELL.

COMBINED COOKING STOVE AND HOT WATER HEATER. APPLICATION FILED NOV. 14, 1914. RENEWED AUG. 9, 1917- 1 6,534 Patented May 14,1918.

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COMBINED COOKING STOVE AND HOT WATER HEATER.

APPLICATION FILED NOV. 14,1914. RENEWED AUG.

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Patented Mayl l, 1918.

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FRANK B. HOWELL, or BUFFALO, New YORK, assleivor 'ro AMERICAN RADIATOR COMPANY, or CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

COMBINED COOKING-STOVE AND I-IOT WATER- HEATER.

Specification of Letters Patent.

' Patented May 14, 1918.

Application filed November 14, 1914, Serial No. 872,122. Renewed August 9, 1917. Serial No. 185,393.

following is a full, clear, and eXact specification.

My invention relates toimprovements in heating apparatus and the same has for its bj t l le partici'ilarly to provide a simple, efiici'ent and reliable combined cooking stove and hot water heater which latter feature also serves to supply a hot water heating systen'i for apartments and houses of moderate size. v

Further, said invention has for its object to provide a heating apparatus in which the produced heat may, at will, b'e directed ontirely to and below the top plate of the stove when the stove is to be used solely for cooking purposes, or be diverted therefrom and directed entirely toward the compartments containing the hot water heating apparatus when the stove is to be used solely as a heating medium for the radiators located in adjacent or remote parts or chambers of 'a dwelling. p g

. Further, said invention has for its object to provide a stove in which the fuel receptacle is'constructed and arranged to maintain the fuel in the form of a relatively thin or narrow vertical column through which the draft is passed crosswise or horizontally.

Further, said invention has for its object to provide a stove having a fuel receptacle, combustion chamber and its draft passages and appurtenances so constructed and arranged as to permit of the burning of all kinds of fuel economically and sinokelessly. Further, said invention has for its object to provide a stove having a fuel receptacle in which the air, necessary to support combustion is not permitted to enter the fuel receptacle directly but is conducted longitudinally thereof through heated flues arranged at one side of the receptacle, and at the back thereof, in order to preheat the air, and thence conducted to the opposite side of the receptacle whence it is delivered to the fuel receptacle in a series of superposed parallel, horizontal streams or jets.

To the attainment of the aforesaid objects and ends my invention consists in the novel details of construction, and in the combination, connection andarrangeme'nt of parts hereinafter more fully described and then pointed out in the claims.

In the accompanying drawings wherein like numerals of reference indicate like parts,-

Figure l is a front elevation of a cooking range or stove embodying this invention;

Fig. '2 is a top plan view of the same;

Fig". 3 is a view of the frontend of the stove, partly in section, the latter being taken on line 33, Fig. 5.

Fig.4 is a vertical section at right angles to Fig. 3 on line l' l, Fig. 6.

Fig. 5 is a vertical section on line 55, Fig. 6.

Fig. 6 is a horizontal section on line b6, Fig. 5.

Fig. 7 is a vertical section on line 77, F '6.

Fig. 8 is afragmentary vertical section of the rear portion of the stove on line S8, Fig. 5.

10 represents the fire box or fuel receptacle which occupies one side of the stove, as shown in the drawings the left hand side when viewed from the front. Positioned above the fuel receptacle is the combustion chamber 10. 11 represents the oven which occupies the upper right hand portion of the stove, and 12 represents the water heater which occupies the portion underneath the oven, which is the lower right hand portion, as shown in the drawings.

13 represents the top plate which extends over the combustion chamber and the oven and is provided with a suitable number of openings for cooking vessels. The openings are provided with the usual covers 14:. The exit opening 15 for connection with the stove pipe is arranged in this top plate in rear of the oven.

The fuel receptacle 10 is high and narrow in order to hold the fuel in the form of a tall column which is narrow in the direction in which the draft passes through the fuel and has its draft passages so arranged that the draft passes transversely through the column of fuel from one side to the other. In the construction shown in the drawings, the draft passes through the fuel receptacle transversely from the side of the fuel receptacle which is adjacent to the end of the stove toward the side at which the oven and the water heater are arranged.

The air for the support of combustion enters an upright air chamber 16 which forms the narrow .front wall of the fuel receptacle and which is provided in its front plate with a vertical series of air inlet openings 17. Air inlet passages 18 extend in line with these openings through the insulated or lined outer wall 19 of the stove, Fig. 6. The inlet openings 17 are controlled by a vertically adjustable register plate 20, Figs. 1, 3, 5 and 6, having openings 21 corresponding with the openings 17. This register plate is provided with a handle 22, Figs. 1 and 3, by which it can be moved up or down.

The exit wall of the fuel receptacle is formed by a vertical series of spaced hollow bars 23, the cavities of which form air passages communicating at their front or inlet ends With the front air chamber 16 and at their outlet ends with an upright air chamber 24 forming the narrow rear wall of the fuel receptacle. These hollow bars extend lengthwise from the front air chamber 16 to the rear air chamber 24: and are separated by draft exit passages 25 through which the flame and hot gases escape from the fuel receptacle. The upper and lower sides of these hollow bars are inclined so as to rise in the direction of the draft and away from the colunni of fuel in order to confine the latter within the fuel receptacle. This upright series of hollow bars connects the front and rear air chambers and forms an upright grate between these chambers on the exit side of the fuel receptacle.

26 represents spaced bars which constitute an upright grate on the inlet draft side of the fuel receptacle and extend from the rear to the front air chamber of the same. These bars are inclined like the hollow bars 23 but are solid and are separated by air passages 27 into which the air is delivered from the rear air chamber 24 through openings 28 in the adjacent plate of the rear air chamber, Figs. 4 and 6. These solid bars 26 are preferably rovided on their under sides along their e ges with longitudinal ribs 29, 30, Fig. 4, to better confine the air currents, which ribs give these bars an inverted channel form.

In the operation of this fuel receptacle the air for the support of combustion enters the front air chamber 16, passes through the hollow. bars 23 of the exit grate, then through the rear air chamber 24:, and then through the spaces between the solid bars the burning fuel, and consequently the air passing in contact with these hot surfaces of the front air chamber, the hollow bars of the exit grate, and therear. airchamber be comes highly'heated and issues into the column of fuel at the indraft side of the fuel receptacle in a highly heated state, whereby the complete combustion of the fueljis promoted and the formation of smoke is practically avoided.

31 represents.supplemental air inlet openings formed in the end wall 32 of the stove at the indraft side of the fuel receptacle and in line with one or more of the airpassages 27 between the indraft bars 26. These openings are controlled in any suitable manner, for instance, by pivoted cover 33, and

may be employed if the nature of the fuel requires an additional air supply to the fuel receptacle.

34:, Figs. 4, 5 and 6, represents an upright main flue which is arranged on the exit side of the fuel receptacle. The exit draft passages 25 between the hollow bars 23ope n into this fine from which the draft is directed in various ways'through branch flues, as the user may desire. The'upper portion of this main flue extends across the indraft side of the oven which is separated from this flue by an upright partition or plate 35 extending from the top plate of the oven to the bottom plate thereof and from the front wall to the rear wall of the stove. Above this upright partition andflunderneath the top plate of the stove there is arranged a damper 36 which controls the passage leading from the upper end of the main flue 3a to a horizontal fine 37 which is arranged between the top of the oven and the top plate of the stove and which communicates with the exit opening 15 with which the stove pipe is connected. Upon opening this damper, as shown in Fig. 4, the draft passes directly from the upper end of the upright main flue to the exit opening 15, and the heat is practically I concentrated upon the top plate of the stove and cut off from the oven and from the water heater. By closing this damper, as shown in Fig. 5, the draft is prevented from passing directly to the exit opening 15. y l

38, Figs. 18,' represents 'a' horizontal baffle plate arranged underneath the oven and above the water heater, and separated from the bottom of the oven by a horizontal intermediate flue 39 which communicates at the rear side of the stove with an upright flue 40 extending upwardly on the rear side of the oven to the horizontal top flue 37. The lower portion of theupright main flue 34 is arranged adjacent to thewater heater from whichit is separated by an upright partition or plate'tl which extends from the horizontal baffle plate 38 downwardly and is separated at its'lower end from the bottom of the stove by a draft passage 42'. The horizontal baffle plate 38 is provided near the main flue 34 with draft passages 43. The passage leading from the main flue to the horizontal flue 39 beneath the bottom of the oven is controlled by a damper 44. Upon closing the latter and the top damper 36'the draft is directed downwardly through the main flue and through the bottom passage 42' to the lower portion of the space in which the water heater is arranged. The draft passes upwardly through this space, supplying heat to the water heater, and passes through the passages 43 in the horizontal baffle plate 38 into the horizontal flue 39 and thence throughthe upright rear flue 40 to the exit opening 15 to which the stove pipe is connected.

Upon closing the upper damper 36 and opening the lower damper 44 the draft is directed from the main flue 34 to the horizontal flue 39 beneath the oven and cut off from the water heater. In this position of the dampers the heat is utilized mainly for heating the top plate and the oven, as in cooking and baking, and but little heat is supplied to the water'heater.

The water heater 1?. shown in the drawings is composed of several connected sections or chambers and provided with a flow pipe 45 and a return pipe 46. It may also be providedwitha faucet 47 for drawing off hot water. The particular construction ofthe water heater is unimportantand any suitable construction may be employed.

It will be seen from the foregoing description that the three main parts of this combined cooking stove and water heater, which parts comprise a fuel receptacle, an oven on one side thereof'and a'water heater beneath the oven, are so arrangedrelatively to each other and combined with flues and dampers that the draft passes from the fuel receptacle to an upright main flue which is located between the fuel receptacle and the oven and water heater, and that the draft can be directed from this main flue directly to the exit opening above the oven, in which case the draft is practically cut off both from the oven and from the water heater; or the draft can be directed from the main flue to a flue beneath the oven and above the water heater, in which case the oven is heated and the draft is practically cut off from the water heater; or the draft can be directed from the lower end of the upright main flue to the lower end of the space in which the Water heater is arranged, in which case the water heater is heated.

48 represents the grates, 49 the ash pit, 50 the ash pit door, 51 the oven door and 52 the door leading to the space in which the water heater is arranged.

No claim is made in this application to the fire box construction as the same forms the subject matter of my co-pending divisional application Serial No. 55,773, filed October 14, 1915.

Having thus described my said invention, what I claim and desire to secure by Letters Patent is 1. In a combined stove and water heater, the combination with a fuel receptacle, of an oven and a water heater arranged at one side of said fuel receptacle and separated therefrom by an upright flue, and means for directing the draft from said upright flue over or under said oven, or to said water heater, substantially as specified.

2. In a combined stove and water heater, the combination with a fuel receptacle, of an oven, and a water heater arranged beneath said oven, and both separated from said fuel receptacle by an upright flue, and means for directing the draft from said upright flue over or under said oven, or to said water heater, substantially as specified.

3. In a combined stove and water heater, the combination with a fuel receptacle, of an oven arranged at one side of said fuel receptacle, a compartmentbelow said oven, a water heater in said compartment, said oven and said compartment being separated from said fuel receptacle by an upright flue, and means for severally directing the draft from said upright flue over or under said oven, or into said compartment, substantially as specified.

4. In a combined stove and water heater, the combination with a fuel receptacle, of an'oven, arranged at one side of said fuel receptacle, a compartment below said oven, a waterheater in said compartment, said oven and said compartment being separated fromsaid fuel receptacle by an" upright flue, horizontal flues extending from said upright flue above and below said oven, and valve means for directing the draft from said upright flue to said horizontal flues. and into said compartment, substantially as specified.

5. The combination with a fuel receptacle, of an upright flue arranged on one side thereof, an oven and a water heater arranged one above the other on one side of said flue, a top flue extending from said upright flue over said oven, an intermediate flue extending from said upright flue underneath said oven, a draft passage leading from said upright flue to the space in which said water heater is arranged, and dampers for controlling the draft through said flues, substantially as specified.

6. In a. combined cooking stove and water heater, the combination with a fuel receptacle, of a top plate having an exit opening for the draft, an upright flue arranged on one side of said fuel receptacle, a water heater arranged on one side of said flue, a draft flue and separated from said top plate by a top flue, a damper controlling the communication between saidupright flue and said ,top fine, a water heater arranged beneath said oven, a horizontal baflie plate arranged above said water heater and separated from said oven by an intermediate flue, said baffle plate having a draft passage, a damper controlling the communication between said upright flue and said intermediate flue, and a draft passage leading from the lower portion of said upright flue to the space in which said water heater is arranged, substantially as specified.

8. In a stove, the combination with an upright fuel receptacle having an upright series of draft inlets on one side and an upright series of draft outlets at the opposite side, of an upright main flue arranged on the outlet side of said fuel receptacle and communicating on one side with said draft outlets, an oven arranged on the opposite side of main flue, and branch flues extending from said main flue over and under said oven, substantially as s ecified.

9. In a stove, the com ination with an upright fuel receptacle having an upright series ofdraft inlets on one side and an upright series of draft outlets at the opposite side, of an upright main flue arranged on the outlet side of said fuel receptacle and communicating on one side with said draft outlets, a water heater arranged on the opposite side of said flue, and a draft passage extending from the lower portion of said main flue to the lower portion of the space in which said water heater is arranged, sub

stantially as specified. H

10. In a stove, the combination with a fuel receptaclehaving draft inlets on one side and draft outlets at the opposite side, i

u ri ht fuel rece tacle havin an u nri ht t; D C

series of draft inletson one side and an upright series of draft outlets at the opposite side, of an upright main flue arranged on the outlet side of said fuel receptacle and communicating on one side with said draft outlets, an oven arranged on the opposite side of said flue, a water heater arranged beneath said oven, and branch flues leading from said main flue to said oven and said water heater, substantially as specified.

Signed at the city of Buflalo, Erie county,

in the State'of New York, this 17th dayv of September, one thousand nine hundred and fourteen.

I FRANK B, HOWELL. WVitnesses A. MERTZANOFF, BENJAMIN RAY.

Copies of this patent may be obtained for five cents each by addressing the Commissioner of Patents, Washington, D. 0. 

